as_dataop.cpp

Mon, 15 Dec 2008 15:16:37 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Mon, 15 Dec 2008 15:16:37 +0100
changeset 10
579d467531cc
parent 3
c1941114ca88
child 11
d926203bd2a8
permissions
-rw-r--r--

Correct NULL pointer dereference error in a exception safe manner.

     1 //
     2 //  OSSP asgui - Accounting system graphical user interface
     3 //  Copyright (c) 2002-2008 The OSSP Project (http://www.ossp.org/)
     4 //  Copyright (c) 2002-2008 Ralf S. Engelschall <rse@engelschall.com>
     5 //  Copyright (c) 2002-2008 Michael Schloh von Bennewitz <michael@schloh.com>
     6 //  Copyright (c) 2002-2008 Cable & Wireless Telecommunications Services GmbH
     7 //
     8 //  This file is part of OSSP asgui, an accounting system graphical user
     9 //  interface which can be found at http://asgui.europalab.com/.
    10 //
    11 //  Permission to use, copy, modify, and distribute this software for
    12 //  any purpose with or without fee is hereby granted, provided that
    13 //  the above copyright notice and this permission notice appear in all
    14 //  copies.
    15 //
    16 //  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
    17 //  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
    18 //  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
    19 //  IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
    20 //  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    21 //  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    22 //  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
    23 //  USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
    24 //  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
    25 //  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
    26 //  OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    27 //  SUCH DAMAGE.
    28 //
    29 //  as_dataops.cpp: ISO C++ implementation
    30 //
    32 #define QT3_SUPPORT
    34 // System headers
    35 #include <map>
    36 #include <string>
    38 // Qt general headers
    39 #include <qregexp.h>            // Portable regular expressions
    40 #include <qdatetime.h>
    41 #include <qmessagebox.h>
    42 #include <q3textstream.h>
    43 #include <q3popupmenu.h>
    44 #include <qfile.h>
    45 //Added by qt3to4:
    46 #include <QPixmap>
    48 // User interface
    49 #include "as_const.h"           // Application constants
    50 #include "as_tableitem.h"       // For class RtTableItem
    51 #include "as_crc.h"             // For quality strings
    52 #include "as_uuid.h"            // UUID classes
    53 #include "as_table.h"           // TiTable class
    55 // Icon pixel maps
    56 #include "as_gfx/statok.xpm"    // static const char *s_kpcStatokay_xpm[]
    57 #include "as_gfx/staterr.xpm"   // static const char *s_kpcStaterror_xpm[]
    58 #include "as_gfx/statwrn.xpm"   // static const char *s_kpcStatwarn_xpm[]
    61 //
    62 // Convenience method to load accounts from a file
    63 //
    64 void Titraqform::loadAccounts(QFile &Fileobj)
    65 {
    66     if (Fileobj.isOpen()) {             // Check state of file
    67         Fileobj.flush();                // Begin processing file cleanly
    68         Q3TextStream Account(&Fileobj);  // Convert data to stream
    69         this->loadAccounts(Account);    // Pass off to do the real work
    70     }
    71     else {
    72         if (!Fileobj.open(QIODevice::ReadOnly)) {   // Try to open file
    73             QString Readerrstr;
    74             Readerrstr = trUtf8(TITRAQ_READAFILFAIL).arg(Fileobj.name());
    75             throw Genexcept(Readerrstr.ascii());
    76         }
    77         else
    78             Fileobj.flush();                // Begin processing file cleanly
    79             Q3TextStream Account(&Fileobj);  // Convert data to stream
    80             this->loadAccounts(Account);    // Pass off to do the real work
    81             Fileobj.close();                // Finish fileop by closing
    82     }
    83 }
    85 //
    86 // Load accounts themselves data from a stream
    87 //
    88 void Titraqform::loadAccounts(Q3TextStream &Tstream)
    89 {
    90     using namespace std;                // Needed for hash tables with hmap
    91     map<string, int> Hashnames;         // Hashtable for storing names
    92     map<int, string> Hashnums;          // Hashtable for storing repetitions
    93     map<string, int>::iterator Nameiter; // The hashtable name iterator
    94     map<int, string>::iterator Numiter;  // The hashtable number iterator
    96     QString Line;           // Used for linewise editing and whitespace eating
    98     // Eat lines until reading the start accounts token
    99     while (!Line.startsWith(trUtf8("%!AS-ACCOUNTS")) && !Tstream.atEnd()) {
   100         Line = QString("");         // Empty line for later inspection
   101         Line = Tstream.readLine();  // Get a new line to examine
   102     }
   104     // Strip out extra line feeds in stream
   105     while (Line.isEmpty() && !Tstream.atEnd()) {
   106         Tstream.skipWhiteSpace();       // Strip and get
   107         Line = Tstream.readLine();      // the new line
   108         if (Line.at(0) == QChar('#'))   // Remove comments
   109             Line = QString("");
   110     }
   112     // Set the accounts choices by linewise reading from the input
   113     // stream and parsing the corresponding account fields out of it
   114     while (!Line.isEmpty()) {
   115         QString Temp;                           // For reading from stream
   116         Q3TextStream Asline(&Line, QIODevice::ReadOnly); // Convert a single line
   118         Asline.skipWhiteSpace();            // Remove whitespaces
   119         Asline >> Temp;                     // Copy revision indicator
   121         if (Temp == QString(QChar('R'))) {  // Copy the account field
   122             Asline >> Temp;                 // to temporary for transfer
   123             string Convstring = Temp.toStdString();  // Convert to string (can't cast?)
   124             Hashnames[Convstring] += Hashnames[Convstring];
   125         }
   127         Line = QString(""); // Clear line for next round
   128         while (Line.isEmpty() && !Tstream.atEnd()) {
   129             Tstream.skipWhiteSpace();       // Strip and get
   130             Line = Tstream.readLine();      // the new line
   131             if (Line.at(0) == QChar('#'))   // Remove comments
   132                 Line = QString("");
   133         }
   134     }
   136 //    Hashnames.insert(map<string, int>::value_type((string)QString, int));
   137     for (Nameiter = Hashnames.begin(); Nameiter != Hashnames.end(); Nameiter++)
   138         Hashnums[Nameiter->second] += Nameiter->first + '\n';
   140 // FIXME: Put this in loadData, to load custom and most used task names before
   141 // FIXME: default listings are sorted and inserted
   142     for (Numiter = Hashnums.begin(); Numiter != Hashnums.end(); Numiter++) {
   144         // Count the number of lines of sorted task names
   145         int nNumlines = QString::fromStdString(Numiter->second).count('\n');
   147         // Iterate through the lines of task names, feeding them into the menu
   148         for (int nIter = 0; nIter < nNumlines; nIter++)
   149             *m_pTaskentries << QString::fromStdString(Numiter->second).section('\n', nIter, nIter);
   150     }
   151 }
   153 //
   154 // Convenience method to load personal data from a file
   155 //
   156 void Titraqform::loadData(QFile &Fileobj)
   157 {
   158     if (Fileobj.isOpen()) {             // Check state of file
   159         Fileobj.flush();                // Begin processing file cleanly
   160         Q3TextStream Asentry(&Fileobj);  // Convert data to stream
   161         this->loadData(Asentry);        // Pass off to do the real work
   162     }
   163     else {
   164         if (!Fileobj.open(QIODevice::ReadOnly)) // Try to open file
   165             throw Genexcept(trUtf8(TITRAQ_READPFILFAIL));
   166         else
   167             Fileobj.flush();                // Begin processing file cleanly
   168             Q3TextStream Asentry(&Fileobj);  // Convert data to stream
   169             this->loadData(Asentry);        // Pass off to do the real work
   170             Fileobj.close();                // Finish fileop by closing
   171     }
   172 }
   174 //
   175 // Load personal data from a stream
   176 //
   177 void Titraqform::loadData(Q3TextStream &Tstream)
   178 {
   179     bool bValid = true; // Used to warn on globally invalid accounting data
   180     int nIter = 0;      // Iterator used in loop and also as a count
   181     QString Line;       // Used for linewise editing and whitespace eating
   182     QString Bitbucket;  // Used for null device until we find a better way
   184     QPixmap Statokay(s_kpcStatokay_xpm);
   185     QPixmap Statwarn(s_kpcStatwarn_xpm);
   186     QPixmap Staterror(s_kpcStaterror_xpm);
   188     // Strip out extra line feeds at stream start
   189     while (Line.isEmpty() && !Tstream.atEnd()) {
   190         Tstream.skipWhiteSpace();       // Strip and get
   191         Line = Tstream.readLine();      // the new line
   192         if (Line.at(0) == QChar('#'))   // Remove comments
   193             Line = QString("");
   194     }
   196     // Strip out extra line feeds after reading the data symbol
   197     Line = QString("");                 // Reset our line
   198     while (Line.isEmpty() && !Tstream.atEnd()) {
   199         Tstream.skipWhiteSpace();       // Strip and get
   200         Line = Tstream.readLine();      // the new line
   201         if (Line.at(0) == QChar('#'))   // Remove comments
   202             Line = QString("");
   203     }
   205 //    // Going into data churning, so prepare date and time parsing and conversion
   206 //    Converdate.setSeparator(trUtf8("."));
   207 //    Convertime.setSeparator(trUtf8(":"));
   209     // Optimize viewing by repainting cells only once after processing
   210     m_pMaintable->setUpdatesEnabled(false);
   212     // Set the table text by linewise reading from the input stream
   213     // and parsing date, time, account, and other columns out of it
   214     while (!Line.isEmpty()) {
   215         bool bValid = true; // Warns on linewise invalid accounting data
   216         QString User, Guid, Crc, Rev;                           // Valid admin fields
   217         QString Date, Start, Finish, Account, Amount, Remark;   // Valid user fields
   218         Q3TextStream Asline(&Line, QIODevice::ReadOnly); // Convert a single line now
   220         if (nIter % g_knBlocks == 0) // Add blocks of rows to optimize loading
   221             m_pMaintable->setNumRows(m_pMaintable->numRows() + g_knBlocks);
   223         Asline.skipWhiteSpace();    // Remove whitespaces
   224         Asline >> User;             // Copy the user field
   225         if (!User.isEmpty())
   226             m_pMaintable->setText(nIter, TITRAQ_IDXUSER, User);
   227         else
   228             bValid = false;
   230         Asline.skipWhiteSpace();    // Remove whitespaces
   231         Asline >> Guid;             // Copy the GUID field
   232         // Postpone actual text delivery, to autoinsert GUIDs!
   234         Asline.skipWhiteSpace();    // Remove whitespaces
   235         Asline >> Crc;              // Copy the CRC field
   236         // Postpone actual text delivery, to autoinsert CRCs!
   238         Asline.skipWhiteSpace();    // Remove whitespaces
   239         Asline >> Rev;              // Copy the rev field
   240         if (!Rev.isEmpty())
   241             m_pMaintable->setText(nIter, TITRAQ_IDXREV, Rev);
   242         else
   243             bValid = false;
   245         Asline.skipWhiteSpace();    // Remove whitespaces
   246         Asline >> Date;             // Copy the date field
   247         if (!Date.isEmpty())
   248             m_pMaintable->setText(nIter, TITRAQ_IDXDATE, Date);
   249         else
   250             bValid = false;
   252         Asline.skipWhiteSpace();    // Remove whitespaces
   253         Asline >> Start;            // Copy the start field
   254         if (!Start.isEmpty())
   255             m_pMaintable->setText(nIter, TITRAQ_IDXSTART, Start);
   256         else
   257             bValid = false;
   259         Asline.skipWhiteSpace();    // Remove whitespaces
   260         Asline >> Finish;           // Copy the finish field
   261         if (!Finish.isEmpty())
   262             m_pMaintable->setText(nIter, TITRAQ_IDXFINISH, Finish);
   263         else
   264             bValid = false;
   266         Asline.skipWhiteSpace();    // Remove whitespaces
   267         Asline >> Amount;           // Copy the amount field
   268         if (!Amount.isEmpty())
   269             m_pMaintable->setText(nIter, TITRAQ_IDXAMOUNT, Amount);
   270         else
   271             bValid = false;
   273         Asline.skipWhiteSpace();    // Remove whitespaces
   274         Asline >> Account;          // Copy the account field
   275         if (!Account.isEmpty()) {
   276             Q3TableItem *pOld = m_pMaintable->item(nIter, TITRAQ_IDXTASK);
   277             delete(pOld);   // Get rid of the old before going with the new
   278             RtTableItem *pSwapitem = new RtTableItem(m_pMaintable, Q3TableItem::WhenCurrent, Account);
   279             pSwapitem->setAlignment(Qt::AlignLeft | Qt::AlignVCenter);
   280             m_pMaintable->setItem(nIter, TITRAQ_IDXTASK, pSwapitem);
   281         }
   282         else
   283             bValid = false;
   285         Asline.skipWhiteSpace();    // Remove whitespaces
   286         Remark = Asline.read();     // Copy the remark field
   288         QRegExp Quoted("\"(.*[^\\\\])\"");                  // Get rid of
   289         Quoted.search(Remark);                              // surrounding double
   290         Remark = Quoted.cap(Quoted.numCaptures());          // quotes, and
   291         Remark.replace(QRegExp("\\\\(.)"), QString("\\1")); // escape backslashes
   293         if (!Remark.isEmpty())
   294             m_pMaintable->setText(nIter, TITRAQ_IDXREMARK, Remark);
   296         if (bValid) { // Show a bitmap to signal valid or error state
   297             m_pMaintable->setText(nIter, TITRAQ_IDXSTATUS, QString(QChar('O')));
   298             m_pMaintable->setPixmap(nIter, TITRAQ_IDXSTATUS, Statokay);
   299         }
   300         else {
   301             m_pMaintable->setText(nIter, TITRAQ_IDXSTATUS, QString(QChar('E')));
   302             m_pMaintable->setPixmap(nIter, TITRAQ_IDXSTATUS, Staterror);
   303         }
   305         // Set the GUID text here, in case we need to generate a fresh value
   306         if (!Guid.isEmpty()) {
   307             if (Guid != ".")    // This means, generate a fresh GUID value
   308                 m_pMaintable->setText(nIter, TITRAQ_IDXGUID, Guid);
   309             else {
   310                 AS::Uuid Guidi; // For GUID production
   311                 Guidi.genId();
   312                 m_pMaintable->setText(nIter, TITRAQ_IDXGUID, QString::fromStdString(Guidi.getString()));
   313             }
   314         }
   315         else // if isEmpty()
   316             bValid = false;
   318         // Set the CRC text here, in case we need to generate a fresh value
   319         if (!Crc.isEmpty()) {
   320             if (Crc != ".") // This means, generate a fresh CRC value
   321                 m_pMaintable->setText(nIter, TITRAQ_IDXCRC, "0x" + Crc);
   322             else {
   323                 // Make our long tuple to run through the CRC32 generator
   324                 Qualistring Testuple = User + Guid + Rev + Date + Start;
   325                             Testuple += Finish + Amount + Account + Remark;
   326                 U32 Valcrc = Testuple.getCrc(); // Finally set the checksum to its new value
   327                 QString Crcstr = QString::number(Valcrc, 16).rightJustify(8, '0');
   328                 m_pMaintable->setText(nIter, TITRAQ_IDXCRC, "0x" + Crcstr);
   329             }
   330         }
   331         else // if isEmpty()
   332             bValid = false;
   334         nIter++;            // The big increment
   335         Line = QString(""); // Clear line for next round
   337         while (Line.isEmpty() && !Tstream.atEnd()) {    // Strip and get
   338             Tstream.skipWhiteSpace();                   // Remove white
   339             Line = Tstream.readLine();                  // the new line
   340             if (Line.at(0) == QChar('#'))               // Remove comments
   341                 Line = QString("");
   342         }
   343     }
   345 //    // Start sorting order and direction correctly according to user preferences
   346 //    int nSortcol = (int)m_pPrefs->getNumber(TITRAQ_PREFSORTCOL, TITRAQ_DEFSORTCOL);
   347 //    bool bSortdir = m_pPrefs->getBool(TITRAQ_PREFSORTDIR, TITRAQ_DEFSORTDIR);
   348 //    m_pMaintable->setSortdir(!bSortdir); // Hack! Fake sortdir so we start right
   349 //    m_pMaintable->sortColumn(nSortcol, bSortdir);
   351     // Write nonsaving line numbers for all rows
   352     for (int nIter = m_pMaintable->numRows() - 1; nIter >= 0; nIter--)
   353         m_pMaintable->setText(nIter, TITRAQ_IDXLINE, QString::number(nIter).rightJustify(4, QChar('0')));
   355     m_pMaintable->setUpdatesEnabled(true);      // Update and repaint
   356     m_pMaintable->setNumRows(nIter);            // No excess rows
   357     m_pMaintable->setCurrentCell(nIter - 1, 0); // Move focus to last row
   358     m_pMaintable->ensureCellVisible(nIter - 1, 0); // Scroll please
   360     if (!bValid)
   361         throw Genexcept("Warning: invalid accounting data.");
   362 }
   364 //
   365 // Convenience method to save accounting data to a file
   366 //
   367 void Titraqform::saveData(QFile &Fileobj)
   368 {
   369     if (Fileobj.isOpen()) {             // Check state of file
   370         Fileobj.flush();                // Begin processing file cleanly
   371         Q3TextStream Asentry(&Fileobj);  // Convert data to stream
   372         this->saveData(Asentry);        // Pass off to do the real work
   373     }
   374     else {
   375         if (!Fileobj.open(QIODevice::WriteOnly)) // Try to open file
   376             throw Genexcept(trUtf8(TITRAQ_READPFILFAIL));
   377         Q3TextStream Asentry(&Fileobj);  // Convert data to stream
   378         this->saveData(Asentry);        // Pass off to do the real work
   379         Fileobj.close();                // Finish fileop by closing
   380     }
   381 }
   383 //
   384 // Save accounting data to a stream
   385 //
   386 void Titraqform::saveData(Q3TextStream &Tstream)
   387 {
   388     const int nRows = m_pMaintable->numRows();      // Max rows used in loop
   389     QString Tempfield;                              // Current field string
   390     QString Strsearch;                              // String to strip search
   391     QRegExp Stripper("\\s*$");                      // Pattern to strip off
   393     // Start by prepending the AS data format version symbol
   394     Tstream << TITRAQ_DATAPATTERN << TITRAQ_DATAVERSIONMAJ
   395             << QChar('.') << TITRAQ_DATAVERSIONMIN << endl;
   397     // Linewise save from the main table date, time, account, and others
   398     for (int nIter = 0; nIter < nRows; nIter++) {
   399         Tempfield = m_pMaintable->text(nIter, TITRAQ_IDXUSER);      // Load user field text
   400         if (Tempfield.isNull())
   401             Tstream << Tempfield;                                   // Save user field text
   403         Tempfield = m_pMaintable->text(nIter, TITRAQ_IDXGUID);      // Load GUID field text
   404         if (Tempfield.isNull())
   405             Tstream << trUtf8(" ") << Tempfield;                    // Save GUID field text
   407         Tempfield = m_pMaintable->text(nIter, TITRAQ_IDXCRC);       // Load CRC field text
   408         Tempfield.remove("0x");
   409         if (Tempfield.isNull())
   410             Tstream << trUtf8(" ") << Tempfield;                    // Save CRC field text
   412         Tempfield = m_pMaintable->text(nIter, TITRAQ_IDXREV);       // Load rev field text
   413         if (Tempfield.isNull())
   414             Tstream << trUtf8(" ") << Tempfield;                    // Save rev field text
   416         Tempfield = m_pMaintable->text(nIter, TITRAQ_IDXDATE);      // Load date field text
   417         if (Tempfield.isNull())
   418             Tstream << trUtf8(" ") << Tempfield;                    // Save date field text
   420         Tempfield = m_pMaintable->text(nIter, TITRAQ_IDXSTART);     // Load start field text
   421         if (Tempfield.isNull())
   422             Tstream << trUtf8(" ") << Tempfield;                    // Save start field text
   424         Tempfield = m_pMaintable->text(nIter, TITRAQ_IDXFINISH);    // Load end field text
   425         if (Tempfield.isNull())
   426             Tstream << trUtf8(" ") << Tempfield;                    // Save end field text
   428         Tempfield = m_pMaintable->text(nIter, TITRAQ_IDXAMOUNT);    // Load amount field text
   429         if (Tempfield.isNull())
   430             Tstream << trUtf8(" ") << Tempfield;                    // Save amount
   432         Tempfield = m_pMaintable->text(nIter, TITRAQ_IDXTASK);      // Load acct field text
   433         if (Tempfield.isNull())
   434             Tstream << trUtf8(" ") << Tempfield;                    // Save acct field text
   436         Tempfield = m_pMaintable->text(nIter, TITRAQ_IDXREMARK);    // Load remark field text
   437         Tstream << trUtf8(" \"");                                   // Save beginning double quote
   438         if (Tempfield.isNull()) {
   439             Strsearch = QRegExp::escape(Tempfield);                 // Incoming string escaped
   440             Stripper.search(Strsearch);
   441             Tempfield.truncate(Stripper.pos());                     // Cut off whitespace
   442             Tempfield.replace(QChar('\\'), QString("\\\\"));        // Escape back slashes
   443             Tempfield.replace(QChar('\"'), QString("\\\""));        // Escape double quotes
   444             Tstream << Tempfield;                                   // Save remark field text
   445         }
   446         Tstream << trUtf8("\"");                                    // Save ending double quote
   448         Tstream << endl;                                            // Append a newline
   449     }
   450 }
   452 //
   453 // Convenience method to validate AS data in a file
   454 //
   455 const bool Titraqform::validateData(QFile &Filin) const
   456 {
   457     QString Firstline;      // Will contain the first line of text
   458     char szReadline[QString(TITRAQ_DATAPATTERN).length() + 4L];  // File line
   459     bool bRet = false;      // Set the initial return value
   461     if (Filin.isOpen()) {   // Check open state of file
   462         Filin.flush();      // Not sure if this is needed
   463         Filin.reset();      // Set the file index position to 0
   464         Filin.readLine(szReadline, QString(TITRAQ_DATAPATTERN).length() + 2L);
   465     }
   466     else {
   467         if (!Filin.open(QIODevice::ReadOnly))   // Try to open file
   468             throw Genexcept(trUtf8(TITRAQ_READPFILFAIL));
   469         else {                          // File is now open
   470             Filin.readLine(szReadline, QString(TITRAQ_DATAPATTERN).length() + 2L);
   471             Filin.close();              // Remember to close
   472         }
   473     }
   475     try {   // Pass off to worker method
   476         Firstline = QString::fromAscii(szReadline);
   477         bRet = this->validateData(Firstline);
   478     }
   479     catch (Genexcept &) {
   480         throw;  // Rethrow onwards
   481     }
   482     return bRet;
   483 }
   485 //
   486 // Validate the AS data pattern in a line
   487 //
   488 const bool Titraqform::validateData(QString &Linin) const
   489 {
   490     bool bRet = false;  // Initial return value
   492     // Ensure that the right data version pattern precedes the data
   493     QString Datapattern = QString(TITRAQ_DATAPATTERN);
   494     if (!Linin.startsWith(Datapattern)) { // Incompatible data format
   495         QMessageBox Problema(QString(TITRAQ_APPTITLE) + ' ' + asgui_version.v_short,
   496             TITRAQ_NOPATTERNFOUND + QString(TITRAQ_DATAPATTERN) + TITRAQ_WASNOTFOUNDIN,
   497             QMessageBox::Critical, QMessageBox::Ok | QMessageBox::Escape,
   498             Qt::NoButton, Qt::NoButton);
   499         Problema.exec(); // Give the user the bad news
   500         throw Genexcept(TITRAQ_INVALIDDATA);
   501     }
   502     else if (Linin.section(Datapattern, 1).section('.', 0, 0).toInt() != TITRAQ_DATAVERSIONMAJ) {
   503         QMessageBox Problema(QString(TITRAQ_APPTITLE) + ' ' + asgui_version.v_short,
   504             TITRAQ_BADVERSIONMAJ, QMessageBox::Warning, QMessageBox::Ok | QMessageBox::Escape,
   505             Qt::NoButton, Qt::NoButton);
   506         Problema.exec(); // Give the user the bad news
   507         throw Genexcept(TITRAQ_INCOMPATDATA);
   508     }
   509     else if (Linin.section(Datapattern, 1).section('.', 1, 1).toInt() > TITRAQ_DATAVERSIONMIN) {
   510         QMessageBox Problema(QString(TITRAQ_APPTITLE) + ' ' + asgui_version.v_short,
   511             TITRAQ_BADVERSIONMIN, QMessageBox::Warning, QMessageBox::Ok | QMessageBox::Escape,
   512             Qt::NoButton, Qt::NoButton);
   513         Problema.exec(); // Give the user the bad news
   514         throw Genexcept(TITRAQ_INCOMPATDATA);
   515     }
   516     else
   517         bRet = true;
   519     return bRet;    // Not reached in case of failure
   520 }
   522 //
   523 // Get a whole row of data
   524 //
   525 const QString Titraqform::getRowdata(void) const
   526 {
   527     QString Rowdata, Tempstring;                            // For output string
   528     Q3TableSelection Select = m_pMaintable->selection(0);    // Highlighted text
   529     int nTotal = Select.bottomRow() - Select.topRow() + 1;  // Total row select
   531     // Calculate rows to delete from selection highlight
   532     for (int nIter = 0; nIter < nTotal; ++nIter) {
   533         // Build the row data string one field at a time, adding seps inbetween
   534         Tempstring = m_pMaintable->text(Select.topRow() + nIter, TITRAQ_IDXLINE);
   535         if (!Tempstring.isEmpty())
   536             Rowdata += Tempstring;
   537         Tempstring = m_pMaintable->text(Select.topRow() + nIter, TITRAQ_IDXUSER);
   538         if (!Tempstring.isEmpty())
   539             Rowdata += TITRAQ_SEPARATORTOK + Tempstring;
   540         Tempstring = m_pMaintable->text(Select.topRow() + nIter, TITRAQ_IDXGUID);
   541         if (!Tempstring.isEmpty())
   542             Rowdata += TITRAQ_SEPARATORTOK + Tempstring;
   543         Tempstring = m_pMaintable->text(Select.topRow() + nIter, TITRAQ_IDXCRC);
   544         if (!Tempstring.isEmpty())
   545             Rowdata += TITRAQ_SEPARATORTOK + Tempstring;
   546         Tempstring = m_pMaintable->text(Select.topRow() + nIter, TITRAQ_IDXREV);
   547         if (!Tempstring.isEmpty())
   548             Rowdata += TITRAQ_SEPARATORTOK + Tempstring;
   549         Tempstring = m_pMaintable->text(Select.topRow() + nIter, TITRAQ_IDXDATE);
   550         if (!Tempstring.isEmpty())
   551             Rowdata += TITRAQ_SEPARATORTOK + Tempstring;
   552         Tempstring = m_pMaintable->text(Select.topRow() + nIter, TITRAQ_IDXSTART);
   553         if (!Tempstring.isEmpty())
   554             Rowdata += TITRAQ_SEPARATORTOK + Tempstring;
   555         Tempstring = m_pMaintable->text(Select.topRow() + nIter, TITRAQ_IDXFINISH);
   556         if (!Tempstring.isEmpty())
   557             Rowdata += TITRAQ_SEPARATORTOK + Tempstring;
   558         Tempstring = m_pMaintable->text(Select.topRow() + nIter, TITRAQ_IDXAMOUNT);
   559         if (!Tempstring.isEmpty())
   560             Rowdata += TITRAQ_SEPARATORTOK + Tempstring;
   561         Tempstring = m_pMaintable->text(Select.topRow() + nIter, TITRAQ_IDXTASK);
   562         if (!Tempstring.isEmpty())
   563             Rowdata += TITRAQ_SEPARATORTOK + Tempstring;
   564         Tempstring = m_pMaintable->text(Select.topRow() + nIter, TITRAQ_IDXREMARK);
   565         if (!Tempstring.isEmpty())
   566             Rowdata += TITRAQ_SEPARATORTOK + Tempstring;
   567         Rowdata += trUtf8("\n");    // Finish off line
   568     }
   570     return Rowdata;
   571 }
   573 //
   574 // Set a whole row of data
   575 //
   576 void Titraqform::setRowdata(QString &Rowdata) const
   577 {
   578     int nRows = Rowdata.count(QChar('\n'));             // Set so many rows
   579     int nCurrentrow = m_pMaintable->currentRow();       // Current table row
   580     Q3TableItem *pItem = NULL;                          // Old item to change out
   581     QString Line, User, Guid, Crc, Rev;                 // Admin fields in table
   582     QString Date, Start, Finish, Amount, Task, Remark;  // Viewable fields in table
   583     Q3TextStream Datastream(&Rowdata, QIODevice::ReadOnly);      // Convert data to stream
   585     for (int nIter = 0; nIter < nRows; ++nIter) {
   586         QString Singlerow = Datastream.readLine();              // For linewise operation
   587         Q3TextStream Rowstream(&Singlerow, QIODevice::ReadOnly);         // Convert row to stream
   589         Rowstream >> Line >> User >> Guid >> Crc >> Rev;        // Stream data fields
   590         Rowstream >> Date >> Start >> Finish >> Amount >> Task; // to corresponding vars
   591         Remark = Rowstream.readLine();                          // Remark is a whole line
   593         // Set the table row data one field at a time, skipping seps inbetween
   594         // Importantly, do not copy over the GUID, which must be unique each row
   595         m_pMaintable->setText(nCurrentrow + nIter, TITRAQ_IDXLINE, Line);
   596         m_pMaintable->setText(nCurrentrow + nIter, TITRAQ_IDXUSER, User);
   597         m_pMaintable->setText(nCurrentrow + nIter, TITRAQ_IDXCRC, Crc);
   598         m_pMaintable->setText(nCurrentrow + nIter, TITRAQ_IDXREV, Rev);
   599         m_pMaintable->setText(nCurrentrow + nIter, TITRAQ_IDXDATE, Date);
   600         m_pMaintable->setText(nCurrentrow + nIter, TITRAQ_IDXSTART, Start);
   601         m_pMaintable->setText(nCurrentrow + nIter, TITRAQ_IDXFINISH, Finish);
   602         m_pMaintable->setText(nCurrentrow + nIter, TITRAQ_IDXAMOUNT, Amount);
   604 //        // FIXME: Why doesn't this code change the RtTableItem text in place?
   605 //        RtTableItem *pTask = NULL;                      // Derived and special
   606 //        pItem = m_pMaintable->item(nCurrentrow + nIter, TITRAQ_IDXTASK);
   607 //        pTask = static_cast<RtTableItem *>(pItem);
   608 //        pTask->setText(Task);
   610         // Change out old item and replace with new task data
   611         pItem = m_pMaintable->item(nCurrentrow + nIter, TITRAQ_IDXTASK);
   612         delete(pItem);  // Get rid of the old before going with the new
   613         RtTableItem *pSwapitem = new RtTableItem(m_pMaintable, Q3TableItem::WhenCurrent, Task);
   614         pSwapitem->setAlignment(Qt::AlignLeft | Qt::AlignVCenter);
   615         m_pMaintable->setItem(nCurrentrow + nIter, TITRAQ_IDXTASK, pSwapitem);
   617         // Continue with field processing business as usual
   618         m_pMaintable->setText(nCurrentrow + nIter, TITRAQ_IDXREMARK, Remark.simplifyWhiteSpace());
   619     }
   620 }
   622 //
   623 // Discover which column is the first in view
   624 //
   625 const int Titraqform::getFirstcol(void) const
   626 {
   627     int nIter = 0;  // Is both iterator in loop and column number returned
   629     // Use column selector menu popup as sole key to determining column state
   630     while (nIter < TITRAQ_IDXTAIL && !m_pColspopup->isItemChecked(m_pColspopup->idAt(++nIter)))
   631         TITRAQ_NOP;
   633     return nIter - 1; // Return one less to account for start of item offset
   634 }

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